Tripartite Evolutionary Game Analysis of Trust Relationship between Enterprises in a Cloud Manufacturing Environment: A Service Composition Perspective

Table 1

Tripartite evolutionary game model parameters of service demander, service provider, and platform supervisor.

Parameters	Explanations
C	Costs incurred when regulated by the platform supervisor
C1	Total costs incurred by the service provider in adopting a trustworthy strategy
C2	Total cost to the demand side of the service
C3	When the demand side of the service takes trust, the service provider takes untrustworthy, and the platform regulator does not regulate, the provider takes opportunism, causing a perceived loss to the demand side
C4	Disguise costs incurred by the service provider in adopting an untrustworthy strategy
C5	The platform supervisor will incur additional perceived losses to itself as a result of the service provider’s untrustworthy nature
G1	The platform rewards additional service providers for perceived benefits
Q	History of service interactions
W	The supervising platform supervisor also imposes additional perceived penalties on the service provider for noncompliance when the service provider acts in breach of trust
R1	Benefits received by the platform supervisor when choosing a supervision strategy
R2	Transaction prices for cooperation between service providers and service demanders
R3	Additional perceived benefits from mutual trust
R4	Additional perceived benefits are received when the service demand side takes trust, the service provider acts untrustworthy, and the service provider acts opportunistically when the platform supervisor does not supervise
A	Share of additional benefits R3 to service providers and service demanders
B	Revenue earned by the platform supervisor for the “nonsupervision” strategy as a percentage of revenue earned by the platform supervisor for the “supervision” strategy
G2	Platform rewards additional service demand-side perceived benefits
K	When the service demander chooses to trust and the service provider chooses to be untrustworthy, that is, the service provider defaults, the service provider needs to pay a certain penalty to the service demander
α	Degree of synergy between multiple service entities